Lots of data show that relationships are the greatest reward—that they’re more important to your health and happiness than anything else. For example, as Robert Waldinger, director of Harvard’s seventy-five-year Grant and Glueck study of adult males from a variety of socioeconomic backgrounds, puts it, “You could have all the money you’ve ever wanted, a successful career, and be in good physical health, but without loving relationships, you won’t be happy . . . The good life is built with good relationships.”
